Virbac Enzymatic Dental Teeth Oral Hygiene Teeth Chew Small Dog 30 CountAbout the product: Combines natural antiseptic activity with abrasive action for clinically proven plaque control Exclusive Dual Enzyme System eliminates plaque forming bacteria Made using select beef hide Give your dog at least 1 chew daily to reduce plaque and calculus Combines mechanical action of rawhide and antiseptic power of chlorhexidine to reduce calculus Coated with patented 10 percent (w w) solution of chlorhexidine gluconate